Disorders of breast (N60-N65)
ICD-10 codes from N60 to N65 cover noncancerous disorders and structural changes affecting the breast, including cysts, mastopathy, inflammation, lumps, and issues after breast reconstruction. These codes help specify benign breast conditions by location and type for accurate diagnosis and treatment documentation.
This range includes codes like N60 for benign mammary dysplasia and various solitary cysts, such as N60.01 for cysts of the right breast. It also addresses fibrocystic changes known as diffuse cystic mastopathy (N60.11) and fibroadenosis (N60.21), helping coders identify fibrocystic disease or sclerosing adenosis. Inflammatory disorders like mastitis (N61.0) and breast abscesses (N61.1) are coded here, along with granulomatous mastitis (N61.21). N62 captures hypertrophy or enlargement such as gynecomastia. Unspecified lumps in specific breast areas use N63 codes, useful for documenting unclear breast masses. Other breast issues like nipple fissures (N64.0), fat necrosis (N64.1), galactorrhea (N64.3), and mastodynia or breast pain (N64.4) are also included. Finally, deformities or disproportion in reconstructed breasts are classified under N65.0 and N65.1. These codes are essential for distinguishing benign breast conditions, such as cysts, fibrocystic changes, inflammatory breast diseases, and post-surgical alterations, facilitating precise clinical and billing processes.
Diseases of the genitourinary system (N00–N99)
Disorders of breast (N60-N65)
N60 Benign mammary dysplasia
N60.0 Solitary cyst of breast
- N60.01 Solitary cyst of right breast
- N60.02 Solitary cyst of left breast
- N60.09 Solitary cyst of unspecified breast
N60.1 Diffuse cystic mastopathy
- N60.11 Diffuse cystic mastopathy of right breast
- N60.12 Diffuse cystic mastopathy of left breast
- N60.19 Diffuse cystic mastopathy of unspecified breast
N60.2 Fibroadenosis of breast
- N60.21 Fibroadenosis of right breast
- N60.22 Fibroadenosis of left breast
- N60.29 Fibroadenosis of unspecified breast
N60.3 Fibrosclerosis of breast
- N60.31 Fibrosclerosis of right breast
- N60.32 Fibrosclerosis of left breast
- N60.39 Fibrosclerosis of unspecified breast
N60.4 Mammary duct ectasia
- N60.41 Mammary duct ectasia of right breast
- N60.42 Mammary duct ectasia of left breast
- N60.49 Mammary duct ectasia of unspecified breast
N60.8 Other benign mammary dysplasias
- N60.81 Other benign mammary dysplasias of right breast
- N60.82 Other benign mammary dysplasias of left breast
- N60.89 Other benign mammary dysplasias of unspecified breast
N60.9 Unspecified benign mammary dysplasia
- N60.91 Unspecified benign mammary dysplasia of right breast
- N60.92 Unspecified benign mammary dysplasia of left breast
- N60.99 Unspecified benign mammary dysplasia of unspecified breast
Benign mammary dysplasia (N60)
N61 Inflammatory disorders of breast
- N61.0 Mastitis without abscess
- N61.1 Abscess of the breast and nipple
N61.2 Granulomatous mastitis
- N61.20 Granulomatous mastitis, unspecified breast
- N61.21 Granulomatous mastitis, right breast
- N61.22 Granulomatous mastitis, left breast
- N61.23 Granulomatous mastitis, bilateral breast
Inflammatory disorders of breast (N61)
- N62 Hypertrophy of breast
Hypertrophy of breast (N62)
N63 Unspecified lump in breast
- N63.0 Unspecified lump in unspecified breast
N63.1 Unspecified lump in the right breast
- N63.10 Unspecified lump in the right breast, unspecified quadrant
- N63.11 Unspecified lump in the right breast, upper outer quadrant
- N63.12 Unspecified lump in the right breast, upper inner quadrant
- N63.13 Unspecified lump in the right breast, lower outer quadrant
- N63.14 Unspecified lump in the right breast, lower inner quadrant
- N63.15 Unspecified lump in the right breast, overlapping quadrants
N63.2 Unspecified lump in the left breast
- N63.20 Unspecified lump in the left breast, unspecified quadrant
- N63.21 Unspecified lump in the left breast, upper outer quadrant
- N63.22 Unspecified lump in the left breast, upper inner quadrant
- N63.23 Unspecified lump in the left breast, lower outer quadrant
- N63.24 Unspecified lump in the left breast, lower inner quadrant
- N63.25 Unspecified lump in the left breast, overlapping quadrants
N63.3 Unspecified lump in axillary tail
- N63.31 Unspecified lump in axillary tail of the right breast
- N63.32 Unspecified lump in axillary tail of the left breast
N63.4 Unspecified lump in breast, subareolar
- N63.41 Unspecified lump in right breast, subareolar
- N63.42 Unspecified lump in left breast, subareolar
Unspecified lump in breast (N63)
N64 Other disorders of breast
- N64.0 Fissure and fistula of nipple
- N64.1 Fat necrosis of breast
- N64.2 Atrophy of breast
- N64.3 Galactorrhea not associated with childbirth
- N64.4 Mastodynia
N64.5 Other signs and symptoms in breast
- N64.51 Induration of breast
- N64.52 Nipple discharge
- N64.53 Retraction of nipple
- N64.59 Other signs and symptoms in breast
N64.8 Other specified disorders of breast
- N64.81 Ptosis of breast
- N64.82 Hypoplasia of breast
- N64.89 Other specified disorders of breast
- N64.9 Disorder of breast, unspecified
Other disorders of breast (N64)
N65 Deformity and disproportion of reconstructed breast
- N65.0 Deformity of reconstructed breast
- N65.1 Disproportion of reconstructed breast
Deformity and disproportion of reconstructed breast (N65)
Instructional Notations
Type 1 Excludes
A type 1 excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
